CYTOKININS: DISTRIBUTION IN SPECIES OF YEAST TRANSFER RNA
Author(s) -
D. J. Armstrong,
Folke Skoog,
Leslie H. Kirkegaard,
Arnold Hampel,
Robert M. Bock,
I.C. Gillam,
G. M. Tener
Publication year - 1969
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.63.2.504
Subject(s) - valine , biochemistry , transfer rna , saccharomyces cerevisiae , amino acid , tryptophan , histidine , yeast , asparagine , cysteine , biology , alanine , aspartic acid , chemistry , rna , gene , enzyme
Transfer RNA fractions from Saccharomyces lactis and Saccharomyces cerevisiae have been tested for cytokinin activity in the tobacco bioassay. Cysteine tRNA has been identified as a cytokinin-containing tRNA species in S. cerevisiae. Acid hydrolysates of S. lactis tRNA fractions (containing arginine tryptophan, and valine acceptor activities) and S. cerevisiae tRNA fractions (containing alanine, asparagine, aspartic acid, glutamic acid, glycine, histidine, tryptophan, and valine acceptor activities) were inactive in the tobacco bioassay. Cytokinins have been found only in those tRNA species corresponding to codons beginning with U.
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